Subscribe | UPI Odd Newsletter Subscribe CHICAGO, May 7 (UPI) -- A robber who walked into a bank on Chicago's Michigan Avenue and claimed to have a bomb left without the bag of cash, police said. The Chicago Tribune said police were searching for the suspect. Advertisement The Bomb and Arson unit closed off a portion of the busy shopping street in front of the Citibank branch Monday morning while they checked to see if there was bomb in the bag. No one was injured, police said. Read More 'Remorseful robber' accused of murder Robbery victim arrested after chase Underwear disguise falls from thief's face Police: Robber pointed hand at workers Teller told robber to come back tomorrow